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View Full Version : what temp does the fan kick on for a 06 honda trx 450r?



86ATC 250r
04-19-2012, 11:09 PM
hi i jus picked up an 06 honda trx 450r 2 days ago and went for a 2 hr ride yesterday stopping here and there to bullshit and climb hills and my fan didnt kick on at all. so 2 things either thats good or its not working. iv owned all kinds of toys but this is my first 450r. all the fluids were just changed in it a week ago in a shop by me and valves were checked and had a new starter put in it. i put a temp sticker on it. but still what temp does the fan kick on? or how can i tell if it is even working? any info would be great.
thanks in advance

atc007
04-20-2012, 10:28 AM
Not sure of the temp,,but pretty damn hot!!! If you're in say 3rd or higher,,it won't kick on if your rads clean. Has to be tight technical stuff to use it. My bet is,it's working fine,but you can jump it to make sure!

86ATC 250r
04-20-2012, 10:31 AM
ok thanks. i jus didnt know. my buddy has a kfx 450r and it seems like his is always kicking on and my isnt. but he dont ride like me. lol... so i jus wanted to make sure. thanks.

86ATC 250r
04-20-2012, 10:39 AM
actually as i wrote my last post a few mins ago my quad was outside just running and i wanted too see if the fan would kick on and when i was done writing that i went back out and checked and the fan was on.. lol. it was idleing for a bit before it came on.. and my temp sticker said 180. but thats outside temp not internal. so atleast now i know it works and makes me feel alittle better.
thanks again for the info

atctim
04-20-2012, 10:56 AM
I am almost 100% positive the high temp light kicks on at 220 degrees F on the TRX450R. Yes, they run hot! Also, when you first start the machine, the temp light should come on and stay on for about 5 seconds, then go out. This is to show if it is working properly or not. If it does not come on at start up, there is something wrong. I had a trail tech computer on mine that would read 190 - 210 on regular riding.

ezmoney1979
04-20-2012, 11:00 AM
Yeah, you really gotta run the piss out of them to get the fan to turn on. My 450s fan will only kick on during 1st and 2nd gear extreme hill climbing abuse in the dunes on a hot day.

RIDE-RED 250r
04-20-2012, 04:25 PM
One other thing I noticed, my cousin's 450r fan is MUCH more quiet than the fan on my wife's z400... Can easily hear it kick on on the Z, but the Honda not so much.

86ATC 250r
04-20-2012, 09:23 PM
Thanks guys. And my light does come on and go off. I was wondering why that light did that. Good to kno and kno thats its working properly

jon jon
04-20-2012, 09:40 PM
i have a 05 ltz400 and my fan doesnt come on till after i quit riding. is that normal?

RIDE-RED 250r
04-20-2012, 09:58 PM
i have a 05 ltz400 and my fan doesnt come on till after i quit riding. is that normal?

IDK.. My wifes quad will kick the fan on when riding slowly on a warm day. Doesn't take too long either.. If you shut it down with the kill switch and leave the key on the fan will often come on for a minute or so.

jon jon
04-20-2012, 10:22 PM
yea ill cut if off with the switch and leave the key on and itll fun for 2 or 3 min. but it doesnt come on while riding.. i can ride a whole tank out jumping or racing and it still wont come on till i cut if off?

RIDE-RED 250r
04-20-2012, 11:01 PM
Sounds about right. I bet if you putt around in 1st gear for 10 minutes the fan comes on. When we go riding on gravel roads where the cruising speeds are up over 25mph or so, I don't think her fan ever kicks on. But it doesn't take much slow 1st and 2nd gear travel and on it comes.